ENTEK 6622LS EC6622LS Modules

Technical Dossier

Product Details And Specifications

ENTEK 6622LS EC6622LS Series: Comprehensive Module Range and Technical Overview

The ENTEK 6622LS and EC6622LS series PCB circuit boards are established control system components deployed across heavy industrial sectors including petrochemical refining, offshore oil & gas platforms, nuclear power generation auxiliary systems, and continuous-process chemical manufacturing. These boards function as core processing and signal-conditioning assemblies within ENTEK machinery protection and vibration monitoring systems. Their installed base spans facilities that operate under extended maintenance cycles of 10–25 years, making long-term spare parts availability a critical operational requirement. The 6622LS designation covers the base hardware revision, while the EC6622LS prefix denotes the enhanced or conformal-coated variant engineered for high-humidity and corrosive-atmosphere environments.

The Evolution of 6622LS Architecture

The 6622LS board architecture originated within ENTEK's rack-based machinery protection platform, designed to interface with proximity probes, accelerometers, and velocity transducers in compliance with API 670 machinery protection standards. Early revisions used through-hole component construction with discrete analog signal chains. Subsequent EC6622LS revisions transitioned to surface-mount technology (SMT) for improved vibration resistance and reduced board footprint, while maintaining backward-compatible edge connector pinouts to support drop-in replacement within existing rack enclosures.

As ENTEK's product line was absorbed into the Rockwell Automation / Allen-Bradley ecosystem following corporate acquisition, the 6622LS series entered a maintenance-only lifecycle phase. No direct firmware-equivalent successor exists on a one-to-one basis; migration paths typically involve full rack replacement with Bently Nevada 3500 series or Rockwell ICS Triplex TMR platforms. For facilities unwilling or unable to undertake full system migration, sourcing certified refurbished 6622LS and EC6622LS boards remains the only viable continuity strategy.

6622LS Full Catalog & Functionalities (SKU List)

The following SKUs represent verified models within the ENTEK 6622LS and EC6622LS product family, classified by functional role:

Signal Processing & Monitor Boards

• 6622LS: Base PCB circuit board, analog signal processing for machinery protection rack
• EC6622LS: Conformal-coated variant of 6622LS for harsh/humid environment deployment
• 6622LS-01: Revision 01 base board, single-channel vibration input signal conditioner
• 6622LS-02: Revision 02 board with updated op-amp array for improved noise rejection
• EC6622LS-01: Conformal-coated Rev 01, dual-channel proximity probe interface board
• EC6622LS-02: Conformal-coated Rev 02, enhanced EMI shielding for offshore applications

I/O Interface & Relay Output Boards

• 6622LS-IO: I/O expansion board, 16-point discrete input/output interface for rack integration
• 6622LS-RO: Relay output board, 8-channel SPDT relay array for alarm/trip signal routing
• EC6622LS-IO: Conformal-coated I/O expansion board for corrosive environment racks
• EC6622LS-RO: Conformal-coated relay output board, marine and offshore certified variant

Power Supply & Backplane Boards

• 6622LS-PS: Internal power supply regulation board, ±15 VDC and +5 VDC rail generation
• 6622LS-BP: Backplane interconnect board, passive bus for multi-slot rack signal distribution
• EC6622LS-PS: Conformal-coated power supply board for high-humidity rack enclosures

Communication & Diagnostic Boards

• 6622LS-COM: Serial communication interface board, RS-232/RS-485 for DCS data link integration
• 6622LS-DIAG: On-board diagnostic and self-test circuit board for rack health monitoring
• EC6622LS-COM: Conformal-coated communication board, extended temperature range variant

Sourcing Hard-to-Find & Obsolete 6622LS Parts

DriveKNMS maintains a dedicated inventory program for ENTEK 6622LS and EC6622LS series boards. As these components are no longer in active production, sourcing relies on certified refurbished stock, de-installed units from decommissioned facilities, and new-old-stock (NOS) inventory recovered from authorized distributor closeouts. All units are inspected for board-level defects including cracked solder joints, failed capacitors, corroded edge connectors, and damaged conformal coating prior to listing.

DriveKNMS provides cross-reference verification to confirm compatibility between 6622LS revision levels before shipment. For customers requiring long-term maintenance contracts covering multiple units, volume pricing and reserved stock agreements are available upon request.

Quality Control for the 6622LS Range

Each 6622LS and EC6622LS board processed by DriveKNMS undergoes a structured test protocol prior to dispatch:

• Visual inspection of PCB substrate, component solder joints, and edge connector contacts under 10× magnification
• Powered bench test: verification of all DC supply rails against OEM specification tolerances (±2%)
• Functional signal-path test: injection of calibrated analog input signals with measurement of output response at all active channels
• Conformal coating integrity check (EC6622LS variants): UV lamp inspection for coating voids, delamination, or contamination
• Edge connector cleaning and re-tensioning where applicable
• Final documentation: test report issued with each unit, recording measured values and pass/fail status per test point

Units that do not meet OEM-equivalent performance thresholds are quarantined and not offered for sale.